It's a legal question day

This morning I worked with a patron who was either brilliant or a little touched, it's hard to say which. He was looking for old legislation and I'm not sure they connections he drew were accurate. I'm guessing the renewals happened at the same time because it was the end of June and the original acts all expired June 30, but I certainly don't know enough about the specific history to know that for sure. I helped him with the Statutes at Large, showed him our print and fiche volumes and Shepards, gave him my card, and went back to hiding in my cubicle. A couple hours he was back at the ref desk asking for me: someone had gone off with the fiche, his notes, and his copy card while he was in the restroom. They didn't touch his notebook or the two books he had with him. Unfortunately, I was the one to reshelve the fiche when I walked away the first time, meaning that the whole situation was a little weird. Did someone steal his notes and copy card but leave the rest of his stuff? It's a public place and plenty of people are nuts, so it's possible. Nothing was in our nearby trashcans or recycling bins, though. Did he lose them in his own piles? Possible. Did I get really depressed and weirded out looking for something that I'm not sure was really gone in the first place? Definitely.